Hinged cover container



Feb. 13, 1945. M.l. WILLIAMSON EI'AL H INGED COVER CONTAINER Filed July 21, 1942 2 sheets-sheet 1 Feb. 1945- M. WILLIAMSON arm. 2,359,336

HI NGED COVER CONTA INER Filed July 21, 1942 2 SheetsSheet 2 1 INVENTORS Mars/(all Z M7lz'am50i1 lay/lemma =1 larrai/L HTTOE/VEY Patented Feb. 13, 1945 arcane nmcap covaa comma Marshall I. Williamson,

Herman A. Garruth, N on to National Fol New York, N. Y., and orthford, Conn., assignding Box Company, New

Haven, Conn., a corporation of New Jersey Application July 21, 1942, Serial No. 451,710

7 Claims.

This invention relates to hinged cover containers, and more particularly to a container formed from paperboard material comprising a box part having a cover part hinged thereto and adapted to telescope over the open end of the box part.

The improved hinged cover container forming the subject matter of this invention may be formed from a single blank of paperboard material of suitable strength and toughness. The blank is so cut and scored as to permit high speed automatic assembly thereof into a complete container, which may be automatically assembled first into collapsed tubular form and then be shipped to the merchandise manufacwhich is hinged to the rear wall panel of the box part. The top wall panel of the cover part also carries a front flange section formed to telescope over the outside face of the front wall panel of the erected box and side wall sections connected to the top wall panel and adapted to telescope over the side wall panels of the box part when the box part is fully assembled. Each side wall section is provided with a tab which is secured to the inside face of the front flange section when the cover is assembled. These securing tabs are so shaped and formed as to provide a fixed abutment edge which is adapted to cooperate with the abutment edge of a flap hinged to the front wall panel of the box part to provide means for retaining the ,cover part in closed telescoped position over the box part and provide resistance to the opening of the cover part so that the cover part will not nor-- mally open until opening force is applied thereto.

During the assembly operations, the side wall forming sections of the cover part are severably connected by a line of perforations to the upper ends of the adiacent side wall panels of the box part, which permits simultaneous folding and erection thereof. The top wall panel and front flange section of the cover part then both extend in the plane of the rear wall panel of the box part. The cover tabs can then be inturned and secured to the front flange section substantially simultaneously with the assembly of the bottom wall of the box part. When the assembly operation has been completed; the line of perforations which connect of the cover part to the side wall panels of the box part can be easily torn by simply swinging the cover part into full open position. The merchandise plug or package can then readily be inserted into the box part and the cover part swung into closed position. a

The entire container is so formed that the paperboard material from which the blank is cut need be finished and printed on one side thereof only, and when the container is fully assembled only the finished side of the paperboard will be presented as the outside faces of the container. The container as constructed is adapted to be loaded with merchandise on standard automatic filling or loading machines in the same manner j as metal or other rigid hinged cover containers of comparable size. A revenue stamp or tape may be applied to seal the container and, ii desired, the container may be wrapped in a transparent or other suitable wrapping.

This improved container may be made in any length, width or depth desired and is adapted for the packaging of various articles of merchandise which have heretofore customarily been packed in metal or other rigid containers. Since the containers may be shipped to the merchandise manufacturer as partiallyassembled collapsed shells, substantial economies in shipping cost and storage space are realized. The merchandise manufacturer can proceed with the final assembly of the container by operations which can be performed automatically at high production speeds. This improved container can be manufactured for a fraction of the cost of other hinged lid containers and for many uses is fully as serviceable.

An object of this invention is to provide an improved hinged cover container which may be formed from a single blank of paperboard material and which can be assembled automatically at high production speeds.

Another object of this invention is to provide an improved hinged cover container formed from paperboard material, which can be used for the packaging of various articles of merchandise heretofore normally packaged in metal or other rigid hinged cover containers.

A further object of this invention is to provide an improved blank of paperboard material adapted for assembly into a hinged cover container by automatic machine operations.

Another object of this invention is to provide a. container formed from paperboard material having a box part and a cover part hinged therethe side wall sections to and adapted to telescope over theopen end of the box part whichis provided with means associated with the box and cover parts adapted to retain the cover part in closed position so as to prevent any undesired opening thereof but which nevertheless can be easily and quickly opened and closed, and which is so constructed that the cover part may be swung completely away from the open end of the box part so as not to interfere with the insertion or removal of the contents into or from the box part.

, A still further object of this invention is to provide an improved hinged cover container formed of paperboard material. which is attractive and neat in appearance, strong and sturdy in construction and serviceable in use, and which can be manufactured at a fraction of the cost of other hinged cover containers of comparable size.

Other objects of this invention will become apparent as the disclosure proceeds.

Although the novel features which are believed to be'characteristic of this invention will be particularly pointed out in the claims appended hereto, the invention itself, as to its objects and advantages and, the manner in which it may be carried out, may be better understood by referring to the following description taken in connection with the accompanying drawings forming a part thereof, in which:

Fig. 1 is a plan view of a paperboard blank which has been cut and scored ready for assembly into the improved container;

Fig, 2 is a perspective view of the blank as it appears following the first folding operation;

Fig. 3 is a perspective view of the blank as it appears after the second folding operation and wherein the body portion has been assembled into collapsed tubular form;

- Fig. 4 is a perspective view of the partially assembled container as it appears when it has been expanded into tubular form;

Fig. 5 is a perspective view of the partially assembled container showing the bottom tabs of the box part and the securing tabs associated with the cover part folded inwardly in respective approximate alignment;

Fig. 6 is a perspective view of the container at a further stage of assembly and in which one of the bottom-forming flaps of the box part has been folded into position;

Fig. '7 is a perspective view of the container as it appears at a further stage of assembly, showing the other bottom forming flap of the box part and the front flange section of the cover part fully folded and secured in position;

Fig. 8 is a perspective view of the container showing the cover part swung into full open position and a merchandise package in the process of being inserted into the box part;

Fig. 9 is a perspective view of the packed container showing the cover part in closed position over the box part;

Fig. 10 is a vertical cross-sectional view of the packed container as it appears when viewed along the line Ill-Ill of Fig. 9; and

Fig. 11 is an enlarged fragmentary vertical cross-sectional view of the upper portion of the packed container illustrating the manner in which the fixed and hinging abutment elements of the box and cover parts cooperate during opening and closing of the cover part.

Similar reference characters refer to similar parts throughout the several views of the drawings and the specification. I

The container forming blank as shown in Fig.

1 is formed of paperboard material of suitable strength and body. The individual blanks may be cut and scored from large sheets or rolls of paperboard material on an automatic cutting and scoring machine at a high production rate. Each blank comprises a box forming part a and a cover forming part b hingedly connected along transverse score line [6.

The box forming part comprises a front wall panel I, a rear wall panel 2 and side wall panels 3 and 4. One side edge of the front wall panel I is joined to the side wall panel 4 along a score line I and the other side edge is joined to the side wall panel 3 along the score line 5'. One side edge of the rear wall panel 2 is joined to the side wall panel 3 along score line 5" while a securing flap I 0 is Joined along score line 5 to that side edge of side wall panel 4 which is opposite the front wall panel I. The score lines 5, 5', i" and 5" extend in substantially parallel relationship.

- and 4 are each provided with a bottom tab 9 hinged to their respective lower ends along fold line 8". The front wall panel i, rear wall panel 2 and side wall panels 3 and 4 form the rectangular body of the box part while the bottom flaps 6 and I in association with the bottom tabs 9 form the bottom of the box part. The score lines 8' and 8" are slightly offset with respect to score line 8 so that the tabs 9 and flaps 6 and 1 will overlap squarely.

The cover part b is formed from a top panel forming flap l5 which is hingedly connected to the upper end of the rear wall panel 2 of the box part along the transversely extending score line l6 and a front flange forming flap l'l which is hingedly connected to the top panel forming flap l5 along the transversely extending score line 18. The score lines l6 and i8 extend in substantially parallel relationship and are spaced apart a distance slightly greater than the transverse width of the side wall panels 3 and 4 of the box part so that when the cover part is assembled it will snugly telescope over the upper end of the assembled box part.

The side walls of the telescoping cover part are formed by a pair of side sections 20, one of which is hinged to one end of the top wall flap 15 along a score line l5" which is in approximate alignment with the score line 5" of the box part. The other side wall section 20 of the cover part is hingedly connected to a securing flap extension Ill along a score line 5' which is in approximate alignment with the score line 5 of the box part. The securing fiap extension l0 constitutes a continuation of the securing flap ill of the box part but is hinged thereto along a transversely extending fold line l6. Each of the side wall sections 20 of the cover part is provided with a tab extension 24 hinged thereto along a transversely extending fold line 21. Each tab 24 is notched out to define a beveled edge 26 and a straight edge 25, the straight edge 25 forming a fixed abutment edge as will herein after be pointed out.

A hinging abutment fiap II is joined to the upper end of the front wall panel I along a transversely extending fold line I2. The ends of the abutment flap II are beveled as at l3 and the flap has a straight edge H at the top thereof which serves as an abutment edge.

It will be noted that transversely extendin score lines I2 and ii are substantially parallel to each other and to the bottom score line 8. The front wall panel I isof less length than the rear wall panel 2 and score line I 2 is out of alignment with score line It and the score line l6. It will also be noted that the score line I 6' is substantially in alignment with the score line I 8. The upper end of the side wall panel Q of the box part is defined by a beveled edge 22 and a line of perforations 2| in alignment with the beveled edge 22 which together extend from the adjacent end of the score line l2 to the adjacent end of the score line I 6. It will also be noted that the side panel section 20 of the cover part is in fact joined to the upper edge of the side wall panel 3 of the box part by the severable perforations 2| In the same manner theupper edge of the side wall panel 4 of the box part presents a free beveled edge 22 which is in alignment with a line of perforations 2|. The beveled edge 22together with the line of perforations 2| extends from the adjacent end of the score line l2 to the adjacent end of the score line It, the line of perforations 2| severably connecting the upper end of the side wall panel 4 of the box part to the adjacent side wall section of the cover part.

The scoring rule used in scoring the blank shown in Fig.1 forms a score line having a width approximately equal to the thickness of the paperboard and thus some latitude is given to the i fiex point of the score. When the side wall sections 20 of the cover part are telescoped over the adjacent side wall panels 3 and 4 of the box part, the flex point of score lines l5" and IS' will become slightly offset with respect to the flex point of score lines 5" and 5" respectively and the overall width of the top wall panel will be slightly greater than the rear wall panel2 and front wall panel I of the box part.

The blank is preferably partially assembled into the collapsed fiat form shown in Fig. 3 at the box plant, in which condition it may be shipped to the merchandise packer and stored until ready for use, in a minimum of space. The further assembly and packaging operations, as illustrated in Figs. 4 to 9 inclusive, are preferably performed at the plant of the merchandise packer on suitable end sealing and packaging equipment provided for the purpose.

The prepared blank with its inside face uppermost, asillustrated in Fig. l, is run through a continuous strip gluing and folding machine. This machine operates to apply a strip of adhesive g on the downward facing side of the securingfiap l0 and securing flap extension Ill.

The downward facing side of the blank a thus positioned in the machine is the outer finished face of the box as finally assembled. The strip of adhesive may be applied to the downward facing side of the securing flap l0 and securing flap extension III by a stationary adhesive applicator or wheel as the blanks move in rapid succession,

on the travelling conveyor mechanism of th machine.

When the adhesive has been applied, the con tinuous strip gluing and folding machine operates to fold the side wall panel 4 over the front wall panel I of the box part along the score line 5, in the manner illustrated in Fig. 2. The adhesive g applied to the securing flap l0 and the securing flap extension ID will then face upwardly. During further travel of the successive blanks through the continuous strip gluingand folding machine, the rear wall panel 2 is folded along the fold line 5" over the side wall panel 3 and the front wall panel I of th box part, which operation places the free edge of the rear wall panel 2 in adhesive contact with the securing flap Ill and the free edge ofthe top wall panel l5 of the cover part in adhesive contact with the securing flap extension [0. The machine is provided with suitable pressure roller or like devices for firmly pressing the free edge of panels 2 and II into firm adhesive relation with the glue bearing faces of the securing flaps l0 and I0 respectively. The blank as thus glued and folded is ejected from the strip gluing and folding machine in the form illustrated in Fig. 3.111 which form the glued and folded, blank may be stacked, packaged and shipped to the merchandise packer.

When the packer desires to package his merchandise, the partially assembled collapsed blank, as shown in Fig. 3, is expanded to erect the body into the hollow tubular form illustrated in Fig. 4. The packaged merchandise can, if desired, be then inserted into thetubular body, or the merchandise can be inserted after the box has been completely assembled. The box-assembly operation can be conveniently performed on automatic assembly machines in the progressive stages illustrated in Figs. 5 to 8 inclusive.

During the assembly stage illustrated in Fig. 5, the bottom tabs 9 and the cover tabs 24 are folded inwardly so that each pair is substantially in alignment. The tabs at both ends of the box may be manipulated simultaneously as the expanded body moves along a continuous travelling conveyor in a horizontal position. The machine first folds the leading tab 9 and the leading tab 24 rearwardly and inwardly as the expanded body moves in the direction of the arrow 30, as

showntin Fig. 5. Mechanism associated with the machine then operatesjto fold the following tab 9 and the following tab 24 forwardly and inwardly, so that at this stage of .the assembly the box will appear as illustrated in Fig. 5.

During further continued travel, the extended bottom flap 6 is folded upwardly into contact with the paired bottom tabs 9. At this stage of assembly the box will appear as illustrated in Fig. 6.

The horizontally extending bottom flap 1 and the horizontally extending cover flap I! are then moved into contact with glue stripping devices which apply a strip of adhesive to the underside of each flap. During further continued travel of the container, the flaps l and I! will be folded downwardly so as to place the bottom flap 1 in adhesive contact with the outside face of the bottom flap 6 and the cover flap I! in adhesive contact with the inturned cover tabs 24 The container as thus assembled will appear as shown in Fig. 7.

It will be noted that at this stage of assembly theside wall panels 3 and 4 of the box part are integrally but severably joined to the adjacent side wall sections 20 of the cover part by the line of perforations 2|. By the simple operation of swinging the cover part about the score line IE so as to place the top cover panel l5 at an obtuse or acute angle to the rear wall panel 2 of the box part, the perforated lines 2| will be easily broken so as to provide a box part with a freely hinging cover, as illustrated in Fig. 8. If the box part has not previously been loaded with merchandise at the initial stage of assembly shown in Fig. 4, the merchandise package P may be inserted in the box part at the assembly stage illustrated in Fig. 8. When the cover part is swung down into telescoping position over the upper end of the box part, as shown in Fig. 9, the completely packed container is ready for shipment. If desired or required the filled and closed container may be sealed as with a revenue stamp or gummed tape extending over the cover part and down onto the box part or the container may be completely overwrapped with suitable sheet material.

By referring more particularly to the crosssectional views shown in Figs. and 11, it will be noted that the downturned resilient abutment flap II will engage the inside face of the front flange ll of the closed cover part and thus be held in downturned position. Due to the natural resiliency of the paperboard, the abutment flap II has a tendency to swing upward so as to maintain the free abutment edge 25 in contact with the cover flange l'l. It will also be noted that the cover tabs 24 have a free straight edge 25 which will snap over and abut the free edge M of the resilient abutment flap II, and when thus engaged will resist opening of the cover part. In order to insure positive abutment between the abutting edge ll of the resilient abutment flap II and, the abutment edges 25 of the cover tabs 24 when the cover has been swung into closed position as shown in Fig. 10, the upper end 22 of the side wall panels 3 and 4 are inclined or beveled downwardly toward the front wall panel I, so that the top wall panel is of the cover part can be forced down to an acute angle with respect to the rear wall panel 2. The top panel will swing of its own accord into a position substantially at right angles to the rear wall panel 2 when pressure on the top wall panel 15 of the cover part is released. At this point the abutment edge M of the resilient flap H and the abutment edges 25 of the cover tabs 24 will be in true abutting position, as illustrated in Fig. 10.

In opening the cover part to obtain access to the merchandise P an upward pull is exerted upon the cover flange H, which can conveniently be applied by the thumb or fingers to the lower free edge of the front flange section [1. The force thus applied will move the cover flange upwardly or away from the box part, which movement is resisted by the resilient abutment flap H. During this operation it will be noted that the upper ends of the front wall panel I and the rear wall panel 2 will both bend inwardly a slight extent, as illustrated in Fig. 11. When the resilient flap II has thus been moved to extend at an obtuse angle to the front wall panel I, the cover part springs open without further resistance. The resilient abutment flap l l and the fixed abutment tabs 24 are so shaped and proportioned as to offer a predetermined resistance to the normal opening of the cover part, so that the cover part is retained in closed position and will not open during normal handling of the container and can only be opened by applying force to the cover part sufflcient to overcome the resistance to opening offered by the swinging abutment flap H and the fixed abutment tabs 24.

The blank as shown in Fig. 1 can be cut and formed at high speed on automatic machinery. The paperboard sheets or rolls need be finished on one side only and may be imprinted before the blanks are cut. .The individual blanks can be glued and assembled into the collapsed assembled form, as shown in Fig. 3, entirely automatically on strip gluing and folding machines capable of assembling 20,000 or more collapsed shells per hour. The flat assembled shells are substantially rectangular and can be stacked together in a limited space and the shells packed in a shipping carton for shipment to the merchandise packer. As thus made, the collapsed shells are inexpensive to ship and store.

The blank is so formed and proportioned as to permit high speed automatic assembly and packaging of the container by a few simple high speed assembly operations, illustrated in Figs. 4 to 8 inclusive. The container is so constructed that the merchandise package can be inserted into the expanded body of the shell when in the form shown in Fig. 4, or the container can be completely assembled into the form shown in Fig. 8 before the merchandise package is inserted therein. When the container is assembled into the form shown in Fig. 8 in unfilled condition, the merchandise plug or package P can be inserted therein and the cover swung into firmly closed position by means of standard packaging machinery.

The improved container above described is strong and sturdy in construction and attractive in appearance. It is designed and adapted to provide a packaging medium for merchandise heretofore packed in metal and other rigid boxes and containers, to a large extent. The improved hinged cover container herein described can be manufactured and assembled at substantially less cost than comparable other containers having hinged covers, and can be shipped and stored at less cost and with greater convenience. The assembled paperboard container is sufficiently rigid and rugged to withstand the collapsing forces which such containers encounter during shipment, storage and use. This improved paperboard container is also less harsh on clothing when placed in the wearers pocket and has greater warmth and appeal to the customer. I

This improved package is highly adapted for the packaging of smoking tobacco, cigars, cigarettes and many other articles of merchandise where a hinged lid container made of metal or other rigid material has heretofore been considered the only acceptable packaging medium.

While certain novel features of the invention have been disclosed and are pointed out in the annexed claims, it will be understood that various omissions, substitutions and changes may be made by those skilled in the art without departing from the spirit of the invention.

What is claimed is:

1. An improved hinged cover container formed from a single blank of paperboard material comprising, a box part defined by a front wall panel, a rear wall panel, intermediate side wall panels, a bottom wall panel and an open upper end, and a cover part for said upper end, said cover part comprising a top wall panel hinged to the upper end of the rear wall panel of the box part, a front flange section connected to said top wall panel and adapted to snugly telescope over the front wall panel of the box part, a side wall section connected to each end of said top wall panel and adapted to snugly telescope over the adjacent side wall panel of the box part, an abutment tab connected along a score line to each of said side wall sections overlapping and secured to the inside face of the front flange section to thereby maintain said side wall sections and said front flange section fixedly secured to said top wall panel, an abutment flap hinged to the upper end of said front;

wall panel and normally extending along the outside face of said front wall panel, said abutment tabs and abutment flap being substan&

tially wholly contained within the cover part when the cover partis in closed position, said abutment tabs and abutment flap being automatically operative to releasably retain the cover part in closed position and releasably resist opening movement of the cover part until said cover part has been forcibly swung a predetermined distance from closed toward opened position, said hinged abutment flap having an abutment edge arranged to move into abutment with an abutment edge presented by said abut-b ment tabs and maintain compressive stress on said hinged flap during said predetermined swinging movement of the cover part from closed to opened position.

2. An improved paperboard shell comprising a box part and a cover part, said shell having connected front, rear and side walls providing a tubular body and a bottom wall closing the lower end of the shell providing a bottom wall panel for the box part, an upper end wall forming flap hinged to and extending substantially at right angles from the upper end of said rear wall providing a front flange section for the cover part, a securing tab extending from the upper end of each of said side walls and secured to said front flange section, said rear wall having a score line extending transversely thereof and substantially at right angles to the side edges thereof dividing said rear wall into a rear wall panel for the box part and a top wal1- panel for the cover part, a severable line of perforations extending transversely across each of said side walls and substantially joining the adjacent.v end of the score line in said rear wall whereby each side wall is divided into a side wall panel for the box part and an unbroken and unweakened side wall section for the cover part, said front wall of the shell being shorter in length than the rear wall thereof and having a free upper end spaced from the upper end wall of the shell whereby the front wall of the shell forms the front wall panel of the box part, said side walls being severable along said perforated lines by hinging the cover part rearwardly along the score line traversing said rear wall to thereby provide a box part comprising a self-contained receptacle with an open upper end-and a, cover part for said open upper end whose unbroken side wall sections are adapted to snugly telescope over the adjacent side wall panels of the box part and whose front flange section is adapted to snugly telescope over 'the front wall panel of the box part. i g

3; An improved paperboard shell comprising a box part and a cover part, said shell having connected front, rear and side walls providing a tubular body and a bottom wall closing the lower end of the shell providing a bottom wall panel for the box part, an upper end wall forming flap hinged to and extending substantially at right angles from the upper end of said rear wall providing a front flange section for the cover part, a securing tab extending from the upper end of each of said side walls and secured to said end wall flap, said rear wall having a score line extending transversely thereof and substantially at right angles to the side edges thereof dividing said rear wall into a rear wall panel for the box part and a top wall panel for the cover part, a severable line of perforations extending transversely across each of said side walls and substantially Joining the adjacent end of the score line in said rear wall whereby each side wall is divided into a side wall panel for the box part and an unbroken and unweakened side wall section for the cover part, said front wall of the shell being shorter in length than the rear wall thereof and having a free upper end spaced from the upper end wall of the shell whereby the front wall of the shell forms only the front wall panel of the box part, each of said side walls having a notch cut-out in the front edge thereof intersected by theperlorated line in the side wall, said side walls being sever able along said perforated lines by hinging the cover part rearwardly along the score line traversing said rear wall to thereby provide a box part comprising a self-contained receptacle with an open upper end and a cover part for said open upper end whose unbroken side wall sections are adaptedrto snugly telescope over the adjacentside wall panels of thebox part and whose front flange section is adapted to snugly telescope over the front wall panel of the box part.

4. An improved paperboard shell comprising a box part and a cover part, said shell having connected front, rear and side walls providing a tubular body and a bottom wall closing the lower end of the shell providing a bottom wall panel for the box part, an upperend wall forming flap hinged to and extending substantially at right angles from the upper end of said rear wall providing a front flange section for the cover part, an abutment tab extending from the upper end of each of said side walls and secured to the inside face of said end wall flap, said rear wall having a score line extending transversely thereof and substantially at right angles to the side edge thereof dividing said rear wall into a rear wall panel for the box part and a top wall panel for the cover part, a severable line of perforations extending transversely across each of said side walls and substantially joining the adjacent end of the score line in said rear wall whereby each side wall is divided into a side wall panel for the box part and an unbroken and unweakened side wall section for the cover part, said front wall of the shell having a free upper end spaced from the upper end wall of the shell, said front wall forming the front wall panel of the box part and an alutment flap hinged to the upper end of the front wall panel adapted to be folded to overlie the outside face thereof,

said side walls being severable along said perforated lines by hingingthe cover part rearwardly alongthe score line traversing said rear wall to thereby provide a box part comprising a selfcontained receptacle with an open upper end and a cover part for said open upper end whose unbroken side wall sections are adapted to snugly tomatically operated to releasably retain the cover part in closed position and releasably resist opening movement thereof.

5. An improved hinged cover container comprising, a box part defined by connected front,

rear and side wall panels, a bottom wall panel and anopen upper end, said rear wall panel being slightly higher than said front wall panel, and a cover part for said open upper end, said cover part having a top wall panel hinged to the upper edge of the rear wall panel of the box part, a front flange section hinged to said top wall panel and adapted to telescope over the front wall panel of the box part, a side wall section connected to each end of the top wall panel and adapted to telescope over the adjacent side wall panel of the box part, an abutment tab connected along a score line to each of said side wall sections overlapping and secured to the adjacent ends of the front flange section to thereby maintain said side wall sections and said front flange section fixedly secured to said top wall panel, an abutment flap hinged to the upper end of said front wall panel and normally extending along the outside face of said front wall panel, said abutment tabs and abutment flap being substantially wholly contained within the cover part when the cover part is in closed position, said abutment tabs and abutment flap being automatically operative to releasably retain the cover part in closed position and releasably resist opening movement of the cover part until said cover part has been forcibly swung a predetermined distance from closed toward opened position, said hinged abutment flap havingan abutment edge arranged'to move into abutment with an abutment edge presented by said abutment tabs and maintain compressive stress on said hinged flap during said predetermined swinging movement of the cover part from closed to opened position.

6. An improved hinged cover container comprising a box part having a body formed by connected front, rear and side wall panels and a bottom wall formed by overlapping bottom wall flaps connected to said front and rear wall panels, said box part having an open upper end, said rear wall panel being slightly higher than said front wall panel and said side wall panels having corresponding inclined upper ends, and a cover part for said open upper end, said coverpart having a top wall panel hinged to the upper edge of the rear wall panel of the box part, a front flange section hinged to said top wall panel and adapted to telescope over the front wall panel of the box part, aside wall section hinged to each end of the top wall panel and adapted to telescope over the adjacent side wall panel of the box part, an abutment tab connected along a score line to each of said side wall sections overlapping and secured to the inside face of the front flange section to thereby maintain said side wall sections and said front flange section fixedly secured to said top wall panel, an abutment flap hinged to the upper end of said front wall panel and normally extending along the outside face of said front wall panel, said abutment tabs and abutment flap being substantially wholly contained within the cover part when the cover part is in closed position, said abutment tabs and abutment flap being automatically operative to releasably retain the cover part in closed position and releasably resist opening movement of the cover part until said cover part has been forcibly swung a predetermined distance from closed toward opened position, said hinged abutment flap having an abutment edge arranged to move into abutment with an abutment edge presented by said abutment tabs and maintain compressive stress on said hinged flap during said predetermined swinging movement of the cover part from closed to opened position.

7. An improved paperboard blank adapted for automatic machine assembly into a hinged cover container comprising, a box forming part having front, rear and side wall panels hingedly connected in side-by-side relationship, bottom forming flaps hinged to the lower ends of said front and rear wall panels and a cover forming part having a top wall panel hinged to the upper end of the rear wall panel of the box part, a front flange section hinged to said top wall panel, a pair of side wall sections for the cover part each connected along a hinge line to the adjacent end of said top wall panel and connected along a perforated line to the adjacent upper end of the adjacent side wall panel of the box part and forming a continuation of the side wall panel, a securing flap hinged to the upper end of each of said side wall sections of the cover part, each of said securing flaps being reduced in width at the upper end thereof to provide an abutment portion adapted to be secured to the insideface of the front flange section of the cover part, each of said abutment portions presenting a free abutment edge spaced from the adjacent end of said front flange section and disposed between the side edges of the adjacent cover side wall section, an

1 "elongated flap of less width than said front flange section hingedly and swingably secured at one edge thereof to the upper end of said front wall panel and adapted to overlie the outside face thereof and presenting an abutment edge opposite to its said hinged edge, said abutment flap and abutment portions when assembled in container form presenting matching abutment edges and a combined width not greater than the width of said cover front flange section.

MARSHALL I. WILLIAMSON. HERMAN A. CARRUTH. 

